The best assistants have the remarkable capacity to reinvent themselves to meet changing needs. Sometimes going in three directions at once, they, like Olympic gymnasts, swirling through the air in seemingly impossible ways, stick the landing. And, like gymnasts, they may fall -- sometimes over and over again — but they bounce back, reassess what needs to be done, how to go about it and move forward. Clearly, this is not a career for the fainthearted. Executive Leadership Sup